Arctic Snow Depth on Sea Ice

Data Description 

Arctic Snow: Daily maps of the snow depth on top of the floating sea ice. This dataset also determines the multi-year ice cover of the Arctic Ocean where, at this point, no snow depth can be retrieved. Reference: Markus, T. and D.J. Cavalieri, Snow depth distribution over sea ice in the Southern Ocean from satellite passive microwave data, in Antarctic Sea Ice Physical Processes, Interactions and Variability, Antarctic Research Series, 74, edited by M.O. Jeffries, pp.19-40, AGU, Washington, D.C., 1998. Comiso, J.C., D.J. Cavalieri, and T. Markus, Sea ice concentration, ice temperature, and snow depth using AMSR-E data, IEEE Trans. Geoscience and Remote Sensing, 41(2), 243-252, 2003.

Data Format

Northern Hemisphere Snow depth files from SMMR and SSM/I (1978-)

Data processed with a five day history. This allows some determination of variability in the snowcover due to weather events or melt events, which gets flagged in the dataset.

Files are stored in directories per winter season (WSYYYY_YYYYdata), starting 1 October and ending 30 September the following year. Files are named ssmi_n_snowdepth_5day_YYYYDDD.img, where YYYY is the year and DDD is the day-of-year. Files may be gzipped.

Int arrays, 304 x 448, Little-endian (unix will need to byteswap)

Values are:

0-100 snow depth in cm
110 missing
120 land
130 open water
140 multi-year ice (no snow calculations done)
150 variability flag (significant changes in the snow depth over the period covered) as a result of weather effects and short-term melt events.
160 summer melt (5 consecutive variable days after April 1; will be flagged melt until 1 October)

Contacts: 
Thorsten Markus, Thorsten.Markus@nasa.gov, 301-614-5882 
Alvaro Ivanoff, Alvaro.Ivanoff@nasa.gov, 301-614-5886

example of snow depth values and colorbar

 

Files
Attachment Size
1978-1979 Winter season Arctic snow maps 2.86 MB
1979-1980 Winter season Arctic snow maps 3.05 MB
1980-1981 Winter season Arctic snow maps 3.18 MB
1981-1982 Winter season Arctic snow maps 3.04 MB
1982-1983 Winter season Arctic snow maps 3.13 MB
1983-1984 Winter season Arctic snow maps 2.99 MB
1984-1985 Winter season Arctic snow maps 2.98 MB
1985-1986 Winter season Arctic snow maps 2.85 MB
1986-1987 Winter season Arctic snow maps 3.82 MB
1987-1988 Winter season Arctic snow maps 6.59 MB
1988-1989 Winter season Arctic snow maps 7.61 MB
1989-1990 Winter season Arctic snow maps 7.88 MB
1990-1991 Winter season Arctic snow maps 6.89 MB
1991-1992 Winter season Arctic snow maps 7.69 MB
1992-1993 Winter season Arctic snow maps 8.14 MB
1993-1994 Winter season Arctic snow maps 8 MB
1994-1995 Winter season Arctic snow maps 8.25 MB
1995-1996 Winter season Arctic snow maps 8.03 MB
1996-1997 Winter season Arctic snow maps 8.18 MB
1997-1998 Winter season Arctic snow maps 8.37 MB
1998-1999 Winter season Arctic snow maps 8.67 MB
1999-2000 Winter season Arctic snow maps 8.56 MB
2000-2001 Winter season Arctic snow maps 8.31 MB
2001-2002 Winter season Arctic snow maps 8.3 MB
2002-2003 Winter season Arctic snow maps 8.49 MB
2003-2004 Winter season Arctic snow maps 8.43 MB
2004-2005 Winter season Arctic snow maps 8.39 MB
2005-2006 Winter season Arctic snow maps 8.26 MB
2006-2007 Winter season Arctic snow maps 8.68 MB
Snow depth data from the 2007-2008 winter season 7.19 MB
2008-2009 Winter season Arctic snow maps 6.59 MB
2009-2010 Winter season Arctic snow maps 6.51 MB
2010-2011 Winter season Arctic snow maps 6.6 MB
2011-2012 Winter season Arctic snow maps 6.71 MB
2012-2013 Winter season Arctic snow maps 6.55 MB
2013-2014 Winter season Arctic snow maps 5.75 MB
2014-2015 Winter season Arctic snow maps 5.94 MB
2015-2016 Winter season Arctic snow maps 5.63 MB
2016-2017 Winter season Arctic snow maps 5.8 MB
2017-2018 Winter season Arctic snow maps 4.7 MB
1978-1979 Browse images of snow depth 1.8 MB
1979-1980 Browse images of snow depth 1.95 MB
1980-1981 Browse images of snow depth 1.98 MB
1981-1982 Browse images of snow depth 1.88 MB
1982-1983 Browse images of snow depth 1.94 MB
1983-1984 Browse images of snow depth 1.87 MB
1984-1985 Browse images of snow depth 1.88 MB
1985-1986 Browse images of snow depth 1.85 MB
1986-1987 Browse images of snow depth 2.27 MB
1987-1988 Browse images of snow depth 3.55 MB
1988-1989 Browse images of snow depth 4.04 MB
1989-1990 Browse images of snow depth 4.17 MB
1990-1991 Browse images of snow depth 3.89 MB
1991-1992 Browse images of snow depth 4.14 MB
1992-1993 Browse images of snow depth 4.3 MB
1993-1994 Browse images of snow depth 4.21 MB
1994-1995 Browse images of snow depth 4.24 MB
1995-1996 Browse images of snow depth 4.14 MB
1996-1997 Browse images of snow depth 4.23 MB
1997-1998 Browse images of snow depth 4.22 MB
1998-1999 Browse images of snow depth 4.39 MB
1999-2000 Browse images of snow depth 4.3 MB
2000-2001 Browse images of snow depth 4.22 MB
2001-2002 Browse images of snow depth 4.22 MB
2002-2003 Browse images of snow depth 4.3 MB
2003-2004 Browse images of snow depth 4.24 MB
2004-2005 Browse images of snow depth 4.23 MB
2005-2006 Browse images of snow depth 4.16 MB
2006-2007 Browse images of snow depth 4.3 MB
2007-2008 Browse images of snow depth 4.27 MB
2008-2009 Browse images of snow depth 4.23 MB
2009-2010 Browse images of snow depth 4.21 MB
2010-2011 Browse images of snow depth 4.27 MB
2011-2012 Browse images of snow depth 4.25 MB
2012-2013 Browse images of snow depth 4.18 MB
2013-2014 Browse images of snow depth 4.16 MB
2014-2015 Browse images of snow depth 4.2 MB
2015-2016 Browse images of snow depth 4.09 MB
2016-2017 Browse images of snow depth 4.16 MB
2017-2018 Browse images of snow depth 3.19 MB